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WO/2024/047693A1 |
Provided are a drilling system and a drilling method with which it is possible to further improve workability and efficiently drill vertical holes in hard ground. Insertion guides 12G are protrusively provided at intervals in the circumf...
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WO/2024/042470A1 |
This invention relates to a lightweight drill (1) and more particularly, but not exclusively, to a lightweight hydraulic rock drill which makes use of a reciprocating hammer or chisel, used for making holes. The lightweight drill (1) com...
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WO/2023/198609A1 |
The present invention relates to a drill bit assembly (1) for a reverse circulation down- the-hole hammer (100). The assembly comprises a percussion bit (2) having a head portion (3) with a cutting face (5) at a forward end thereof with ...
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WO/2023/094381A1 |
The invention relates to a vibratory hammer drill comprising a drive device (1) for generating a rotary movement, an unbalance device (2) for generating a vibration, and an output shaft (3) having a connection device (32) for releasably ...
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WO/2023/044176A1 |
A ranging system having magnets positioned at various locations along the drive system. Location of the magnetics is shifted to different points on the drilling string to remove the need for a nearby bit sub that would detrimentally affe...
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WO/2022/225096A1 |
A low-noise vibration rock drill according to the present invention comprises: a main body part having a sound-insulation space therein and having a support-coupling part at one end portion thereof; a drifter, which is supported by a for...
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WO/2022/175438A1 |
A flushing element, rock drilling machine and method of providing a flushing space around a shank adapter of a rock drilling machine. The flushing element (19) surrounds the shank adapter (8) passing through it. The flushing element comp...
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WO/2022/175374A1 |
A shank adapter, rock drilling machine and method of mounting a shank adapter of a rock drilling machine inside a slide bearing element. The shank adapter (8) comprises a coupling head (25) and a rotation portion (26) at its opposite end...
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WO/2022/096661A1 |
The present invention relates to a drilling device. The device comprises at least one drill rod, the or each drill rod having a first cylindrical wall defining an elongate chamber for receiving a working fluid to form a fluid column, the...
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WO/2022/008328A1 |
The invention relates to a method for detecting a kickback or a breakthrough of a machine tool (10a; 10b; 10c; 10d), in particular a hand-held machine tool, with an oscillating output movement, in particular a linearly oscillating output...
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WO/2022/003253A1 |
A drill assembly (1) for percussive drilling, comprising a drill bit (2) and a percussion device (6). The drill assembly further comprises a hollow cylindrical foot valve (9) partially received within a first central flushing channel (5)...
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WO/2021/198605A1 |
A rotary percussive hydraulic drill (2) comprises a body (3); a shank (13) having female coupling splines and male coupling splines; a percussion piston (5) configured to strike the shank; a rotational-drive device (18) configured to dri...
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WO/2020/185149A1 |
Herein is described an arrangement to control the movement speed of a percussive element (6) which is arranged to move in a housing (1 ) of a drilling machine, where the percussive element (6) comprises a brake surface (13), wherein the ...
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WO/2020/051637A1 |
A bit drive and retention system (220) is described for a downhole hammer (10). The hammer is connected to a drill string and has bit (112) with a shank (120), a shoulder (122), and a bit face (124). The retention system (220) comprises ...
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WO/2020/031075A1 |
A percussion device including an input side and an output side, the input side is configured to be rotationally driven and the output side is rotationally driven by the input side via a drive transmitter/drive transmitter pathway combina...
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WO/2019/212367A1 |
The subject of the invention is an electric mining drill with a water cooling system. An electric mining drill comprising a drive module comprising an electric engine, mechanical transmission, an electronic control module, a connector le...
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WO/2019/158834A1 |
The rotary-percussive hydraulic drill (2) comprises a body (3); a fitting (15); a striking piston (5) configured to strike the fitting (15); an impact piston (13) having a front face (18) facing the fitting (15) and a rear face (19) faci...
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WO/2019/136521A1 |
The present invention relates to a multipurpose drill system, the multipurpose drill system comprising: a drilling rig adapted to drive a drilling assembly; and two or more power sources, wherein at least one of the two or more power sou...
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WO/2019/120127A1 |
A closed hydraulic rock drill, comprising an outer cover (2), a bit shank sleeve (4), a drill rod (38), and a piston (9). The bit shank sleeve (4) is disposed in the outer cover (2); one end of the drill rod (38) is fixed in the bit shan...
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WO/2019/100033A1 |
A downhole device comprising a novel apparatus and vibratory assemblage that initiates and maintains mechanical agitation within the horizontal section of a well bore by providing both low and high vibration, in multiple axis and planes,...
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WO/2019/011202A1 |
A method for induced drilling by means of inertial confinement motion traction, and an inertial confinement induced drilling device with a PDC drill. By means of the method for induced drilling by means of inertial confinement motion tra...
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WO/2018/187765A1 |
A pressure pulse tool includes a tool housing, a valve disposed in the housing and having first and second valve components that are each rotatable relative to the housing and that cooperate to open and close a fluid flow path through th...
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WO/2018/165348A1 |
A hybrid bit includes an earth-boring element and a percussion element. The earth-boring element and the percussion element are coaxially arranged, with the earth-boring element surrounding the percussion element. A reciprocating member ...
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WO/2018/114230A1 |
The invention relates to a rotary drilling tool and to a method for creating a borehole in the ground, comprising a main body, a removal apparatus, which has at least one hammer unit, which comprises an axially reversingly driven hammer ...
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WO/2018/099262A1 |
Provided is a rock drilling, swelling and chiselling combined machine based on a high-pressure foam medium, which comprises: a mechanical device of the rock drilling, swelling and chiselling combined machine, a high-pressure foam generat...
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WO/2018/047962A1 |
Provided is a drilling tool, wherein a bit head (3) that can rotate about a bit center line (L) separated from an axis (O) on the outer circumference side is mounted to the distal end of a shank device (1) that is rotated about the axis ...
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WO/2018/049199A1 |
A drill string comprises a mechanical drill bit and a ram accelerator with a launch tube proximate to the mechanical drill bit. A projectile accelerated by the ram accelerator exits the mechanical drill bit through an orifice and impacts...
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WO/2017/204664A1 |
The invention can be used in underground mining, being mounted on a device commonly known as a rock drilling jumbo. The system of the invention is used for systems for drilling long radial holes. In ore extraction in underground mining, ...
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WO/2017/204947A1 |
A downhole pulsing apparatus having a tubular housing, a first valve assembly positioned in the housing, first and second turbine stages each comprising a stator and a rotor positioned in the housing below the first valve assembly and a ...
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WO/2017/197442A1 |
A fluid pulse apparatus for down hole drilling having a turbine assembly actuated by a flow of drilling fluid. The apparatus has a narrowed fluid flow section that cooperates with a piston that moves between an open a fluid flow restrict...
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WO/2017/177352A1 |
An impact-type ice driller, comprising a rack (1), a motor (2), a drill stem (7), and a fixed part and a rotary part oppositely arranged in the axial direction. The fixed part is fixed relative to the rack (1); the rotary part is connect...
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WO/2017/164713A1 |
A water hammer device of the present invention comprises: a hammer body having a bit unit, which performs a drilling operation and is provided at an end portion thereof; a piston slidably provided in the hammer body, and having a working...
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WO/2017/131969A1 |
A boring apparatus includes an upper member and a bit body configured to rotate relative to a pilot bit. A first end of the upper member is connected to a workstring. An inner cavity of the upper member includes a first radial cam surfac...
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WO/2017/083940A1 |
A drill motor assembly including a drill shaft and at least two sub-motor assemblies operatively engaged with the drill shaft to cause the drill shaft to rotate.
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WO/2017/056026A1 |
A percussion device that includes: - an input side; - an output side; - at least one drive transmitter; - a drive transmitter pathway; - a percussion impactor; and - a percussion anvil; where: the drive transmitter pathway is a circumfer...
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WO/2017/007469A1 |
A modular, mechanical percussive hammer assembly may be used with drill strings, wireline cable, and coiled tubing. Rotation of a splined driveshaft by downhole electric, hydraulic or mud motor rotates a downwardly-biased hammer and dril...
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WO/2016/192910A1 |
A rock drilling shank adaptor having at least one flush hole extending radially through the body of the adaptor in communication with an axially extending internal bore. The flush hole in a direction from an external side to an internal ...
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WO/2016/192107A1 |
A method for varying a weight on a drill bit in a wellbore. The method includes running a downhole tool into the wellbore on a drill string. The downhole tool includes a motor and a drill bit. The drill bit is rotated with the motor to d...
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WO/2016/180787A1 |
A measurement while drilling (MWD) tool includes a sensor, an encoder operably connected to the sensor and a pulser operably connected to the encoder. The pulser includes a linearly acting bidirectional piston that operates a poppet valv...
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WO/2016/178614A1 |
The invention concerns a damping device for a fluid-driven down-the-hole drill for the damping of the recoil from a drill bit (5A) connected to the machine, comprising a machine housing (2), an impact mechanism (3) driven by pressurised-...
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WO/2016/149795A1 |
A downhole motor has a bearing mandrel rotatably disposed within a housing, plus an impact adapter disposed above and connected to the bearing mandrel and rotatable therewith. The impact adapter has upwardly-projecting teeth engageable w...
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WO/2016/148575A1 |
A percussive hammering assembly comprises a tool assembly (24, 25). The tool assembly (24, 25) is arranged to be oscillated in a direction (P) within a casing. An impact piston (27) is arranged slideably in a housing (28), together with ...
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WO/2016/126258A1 |
Various embodiments include methods and apparatus structured to increase efficiencies of a drilling operation. A drilling apparatus can be structured to include a hammer drill to move a hammer to impart impact force to a bit box in conju...
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WO/2016/109868A1 |
A multi-fluid drilling system (10) drilling is disclosed for drilling a hole or well (11). The system (10) is coupled to a dual wall drill string (12). The drill string (12) is configured to enable separate flow of a first fluid (14) and...
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WO/2016/060852A2 |
An apparatus including a rotating segment having a first radial surface, a non-rotating segment having a second radial surface, a housing disposed around the first and second radial surfaces, and one or more rolling elements disposed bet...
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WO/2016/042234A1 |
The invention concerns a hydraulic drilling apparatus (2) comprising: a housing (3) comprising a front portion (4); a shank (6) comprising a fluid injection conduit (12) and intended to be coupled to at least one drill rod provided with ...
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WO/2016/003351A1 |
The present invention concerns a down-the-hole drill that is driven via a drill string by a flow of fluid. It comprises a housing with an impact mechanism, a drill bit that is mounted such that it can be axially displaced in a driver chu...
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WO/2016/003350A1 |
The present invention concerns a down-the-hole drill that is driven via a drill string by a flow of fluid, comprising a housing with an impact hammer, the impact hammer being arranged with a drill bit mounted in a driver chuck, a hammer ...
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WO/2015/167796A1 |
Repeated percussive forces may be provided using various devices, systems, assemblies, and methods. Example rotary percussive devices may be used in a downhole environment, including within a drilling system that includes a percussive ha...
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WO/2015/089937A1 |
A well-drilling thruster. Same comprises, arranged at the rear extremity part, an electro-hydraulic composite pipe (11), an actuator used for driving the well-drilling thruster forward, and, sequentially fitted and connected, a drive mot...
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